Adjustable vise-locking screw



arch 4,19% j 1,4s5mm H. L. EIGENB'ROT ADJUSTABLE VISE LOCKING SCREW Filed March 5, 1923 2 Sheets-Sheet l arch 4 1924;o

H. 1.. EIGENBROT ADJUSTABLE VISE LOCKING SCREW 2 Sheets-Sheet 2 Filed March 5, 1923 Fatented Mar. 41 1924.,

UNETEED) stares HARRY L. EIGENBRQT, OF SAN FRANCISCO, CALIFORNIA.

ADJUSTABLE VISE-LOOKING SCREW.

Application filed March 5, 1923. Serial No. 622,999.

To all whom it may concern:

Be it known that I, HARRY L. EIGEN- BROT, a citizen of the United States, and a' resident of San Francisco, county of San e Francisco, State of California, have invented a new and useful Adjustable Vise-Locking Screw, of which the following is a specification.

The present invention relates to improvements in vise locking screws such as are used for typesetting machines, in machines of this character as used on the market at the present time a vise frame is pivoted to the mainframe in such a manner that an upper horizontal member of the vise frame may be brought into contact with a sta tionary member running substantially parallel to the same and may be locked to the stationary member by means of a pin threadedly engaging the movable member adapted to engage a recess in the stationary member and to be interlocked with the same by means of flanges brought into registry by a turning motion of the pin, the turning motion serving at the same time to draw the two members together. My invention has particular reference to thispin. As constructed at the present time it is made of one piece and it frequently happens that the flange on the pin. by means of which the locking engagement is effected is disposed on the pin in such a position that the turning motion does not bring about a full engagement of the two flanges. This again very often causes the flange to break since all the strain is put on a small portion of the same. My invention contemplates the providing of means which allow the posi tion of the flange relative to the winding of the thread to be adjusted in such a'manner that a full engagement between the two flanges can always be effected. This construction offers the further advantage that the two flanges can be engaged with one another without the necessity of filing down or fitting one of them if the flange on the pin is not exactlyin the correct) position relative to the winding of the thread. A further object of my invention is to make the member connecting the flange detachable so that the same can be readily removed in case the flange breaks or is otherwise damaged. Further objects and advantages of the invention will appear as the specification proceeds.

The preferred form of the invention is illustrated in the accompanying drawing in which Figure 1 is a side view illustrating the general arrangement of the vise frame, Figure 2 a front view of the same, Figure 3 an enlarged detail view showing the pin in side elevation, Figure 4 a longitudinal section through the pin, Figure 5 a side view of a member forming one of the parts of the pin, Figure 6 an end view of the same, Figure 7 an end View of the top of the pin carrying the flange, Figure 8 a side view of the same, Figure 9 a longitudinal section through a sleeve used in my pin, Figure 10 a longitudinal section through another sleeve forming part of my pin, Fig-c ure 11 an end view of the same, Figure 12 a modified arrangement by means of which the same object may be substantially obtained, Figure 13 a side view of a bushing used in the modified arrangement, Figure 14 an end view of the same and Figure 15 a detail view partly in section showing means for connecting a handle to the pin. While I have shown only the modified form of the invention it should be understood that various changes or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention.

The assembled vise frame (1), the particular construction of which is not of interest as far as the present invention is concerned, is pivotally supported as shown at (2) to a stationary frame (3) and is adapted to be swung into parallel relation with the stationary frame and to be secured thereto by means of two pins (4) having flanges (6) thereon adapted to interlock with flanges (7) extending into recesses (8) in the stationary frame (3). Each pin (4-) is threaded exteriorly as shown at (9) to engage registering threads in the pivoted vise'frame. This locking means thus far described is in common use at the present time but presents several inherent shortcomings which detract from the usefulness of the same. The whole pin as at present constructed is made of one piece so that the flange (6) which covers only about one half of the circumference of the pin as shown in Figure 7 occupies a definite position relative to the winding of the thread (9) which cannot be altered. The particular position of the thread (9) within the vise frame is dependent upon the winding of the internal thread in the latter frame and it is extremely dificult to dispose both of the windings in such a manner that the flange (6) is in the right position at the right time for interlocking with the flange (7) of the stationary frame (3). This may be the cause of two dificulties. Firstl the position of the various members may e arranged so as not to allow of a full engagement of the two flanges (6) and (7) so that the actual work of drawing the two frames together and holdin them in said position has to be performed y small portions of the two flanges instead of by the whole flange which of course would tend to cause the flanges to break. Secondly, the flange (6) may occupy a position relative to the windings of the threaded engagement that it does not allow of engagement with the flange (7) at all in which case it becomes necessary to grind ed the edges whereby the engagement necessarily is weakened.

Tn the present invention it is proposed to construct the in in such a manner that the relative position of the flange (6) to the windings of the thread (9) may be adjusted so that a full engagement between the flanges (6) and (7) may be obtained. For

. this purpose ll construct the pin 1) of two principal parts, one carrying the thread and the other carrying the flange and both being adapted to be adjusted in their relative position to one another. These two parts are the sleeve (11) and the flange supporting member (12) adapted to be slidably received within the sleeve (11). A portion of the member (12) is formed of angular cross section as shown at (13) to engage a registering portion of the sleeve whereby the member (12) is prevented from rotating within the sleeve while its position relative to the sleeve may be adjusted. The member 12) is rovided with two; threaded extensions (14: and (16), the threads of which preferably run in a direction opposite to that of the main thread (9), that is if the latter is a right hand thread the two threads (14) and (16) are left hand. The thread (14) is adapted to receive the tip (17) having the flange (6) secured thereto. It should be noted that this also is an important part of.

- my invention. As made at the present time when the flange (6) breaks a new pin has to be substituted while with my invention the tip only need be renewed. 'lhtit' should be necessary that the ti should be held against removal on a right and'turn or the pin a set screw (18) 'may be introduced through its extreme end to engage the reduced end of the member (12), the hole receiving the set screw beingcountersunk. 1

The other reduced end (16) of the member 12) is adaptedto receive a sleeve (21) v 5 which is held aiainst removal by means of a lef h nd turn y the left hand thread and neeaevo I introduce a split sleeve (27) which yield-.

ingly engages the same and is held against longitudinal motion by the wall of the sleeve (21). v

The device thus far described works as follows. After the pin has been assembled in the manner shown in Figures 3 and 4:

it is threadedly engaged with the pivoted vise frame in the manner shown in Figure 1. After the threaded engagement has been carried suficiently far to allow the flange (6) to catch behind the flange (7) on a rotary motion of the pin the latter is drawn backwards by a turn to the left which causes the flan e (6) to engage the flange (7) and to there y draw the pivoted vise frame (1) in close contact with the stationary frame (3). It the position of the flange (6) at this time should be found to be such that it does not fully engage with the flange (7) the pin may be taken apart by disengaging "the member (12) from the sleeve (11) and re-inserting it in a difi'erent position. If the flange (6) should break away due to any wear the tip (7) may be taken ofl and replaced by a new one.

It should be understood that the idea forming the principal part of this invention may be carriedout in diflerent ways as for instance by the use of the arrangement shown in Figures 12 to 14. In this case a bushing (29) is provided in the vise frame (1) to threadedly engage the threaded portion (33) of the pin (34) which latter may be made of a single piece. The bushing is 7 rotatable in the vise frame and may be adjusted to any desired position within the same by means of a set screw (31) thread-,

edl engaging the end of the member (3) an passingthrough one of a plurality of circumferentially arranged, perforations (36) in the flange (37 of the bushing. By 7 adjusting the bushing the threaded engagement of the pin with the bushing may be adjusted to bring about a proper en gement of the flange (32) on the pin wit the flange (28) of the" stationary member (3).

- 1 claim: p 1

1. In a device of the character described,

, a threaded sleeve member having means associated therewith for advancing the same by rotary motion, a second member ada ted to be rendered-active by said motion an an operative connect on between the W711 mmgaging faces.

maestro member to be adjusted relative to the winding of the thread of the sleeve member.

2. In a device of the character described, a threaded sleeve member having means associated therewith for advancing the same by rotary motion, a second member slidably engaging the same adapted to be rendered active by said motion and an operative connection between the two members allowing the position of the second member to be adjusted relative to the winding of the sleeve thread comprising angularly arranged en- 3. Means for locking a movable element to a stationary element comprising a recess in the latter element having a flange extending into the same and a pin threadedly engaging the movable element having a tip removably secured thereto with a flange at the end of the tip adapted to engage the flange in the recess on a turning motion of the pin whereby the two elements are drawn together.

4. Means for looking a movable element to a stationary element comprising a recess in the latter element having a flange extending into the same and a pin threadedly engaging the movable element having a tip removably secured thereto with" a flange at the end of the tip adapted to engage the flange in the recess on a turning motion of the pin whereby the two elements are drawn together, the pin being constructed to allow the position of the tip flange to be adjusted relative to the winding of the pin thread.

5. Means for looking a movable element to a stationary element comprising a recess in the latter element having a flange extending into the same and a pin threadedly engaging the movable element having a tip removably secured thereto with a flange at the end of the tip adapted to engage the flange in the recess on a turning motion of the pin whereby the two elements are drawn together, the pin comprising a threaded sleeve and a tip engaging member slidably received therein having angularly arranged faces engaging registering faces of the sleeve member.

6. Means for looking a movable element to engage the flange in the'recess on a turningmotion ofthe pin whereby the two elements are drawnt'ogether, means embodied in the pin tor'allowin the position of the tip flange to be adjuste relative to the winding of the thread,.and means associated with the pin for rotating the same.

7 'Means'forlocking a movable element to a stationary element comprising a recess in the latter elementhavinga flange extending thereinto, a pin threadedly engaging the? movable element having a tip secured thereto with a, flange at the end of the tip adapted to engage the flange in the recess on a turning motionof the pin whereby the two elements are drawn together, means embodied in the pin for allowing the position of the tip flange to be adjusted relative to the winding of the thread, and means associated with the pin for rotating the same, comprising an element threadedly engaging its end and a transverse member slidable in the element. o

8. Means for looking a movable element to a stationary element comprising a recess in the latter element having a flange extending thereinto, a pin threadedly engaging the movable element having a tip secured thereto with a flange at the end of the tip adapted to engage the flange in the recess on a turning motion of the pin whereby the two elements are drawn together, means embodied in the pin for allowing the position of the tip flange to be adjusted relative to the winding of the thread, and means associated with the pin for rotating the same, comprising an element threadedly engaging its end and a transverse member slidable in the element, having yielding means associated therewith for holding the transverse member in any desired position.

9. Means for looking a movable element I ing thereinto, a pin threadedly engaging the ovable element having a tip secured thereto w1th a flange at the end of the tip adapted to engage the flange in the recess on a turning motion of the pin whereby the two elements aredrawn together and means allowing the position of one of the flanges to be adjusted relative to the winding of the thread whereby a more perfect engagement between the flanges is secured.

HARRY L. EIGENBRGT. 

